BROOKLINE, Mass. — A world-renowned Massachusetts Institute of Technology (MIT) professor and fusion-energy physicist was shot and killed inside his home earlier this week, an attack that has rattled one of the country’s most elite scientific communities.

Nuno F. Gomes Loureiro, 47, was a professor of nuclear science and engineering and the director of MIT’s Plasma Science and Fusion Center. Loureiro was a renowned figure in fusion-energy research, a field that seeks to recreate the power of the sun inside fusion reactors on Earth. His theories and models helped guide major fusion experiments in the United States and Europe.

Loureiro was rushed to a hospital with “apparent gunshot wounds” Monday evening and pronounced dead Tuesday morning, according to the Norfolk District Attorney’s Office in Massachusetts. A homicide investigation is underway.

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No suspect has been identified and the motive for the killing is still unknown.

The shooting in Brookline occurred two days after an attack at Brown University left two dead and nine injured on Saturday.

While investigators in both cases, at prestigious universities less than 50 miles apart, are sharing intelligence, the special agent in charge of Boston’s FBI office, Ted Docks, said at a news briefing Tuesday that authorities don’t think they’re connected.

Originally from Portugal, Loureiro studied in his home country, in the United Kingdom and in the United States, where he researched topics including the phenomenon behind solar flares. He also focused on plasma — a super-hot form of matter found in stars and in experimental fusion reactors.

Fusion is the process that makes the sun burn and Loureiro’s work explored how that power could be bottled on Earth and controlled inside those reactors. If fusion ever becomes a real source of cheap, clean electricity, it will rely on the kind of physics he helped explain.

“Nuno was not only a brilliant scientist, he was a brilliant person,” Dennis Whyte, a fellow MIT professor, said in an obituary posted by the university. “He shone a bright light as a mentor, friend, teacher, colleague and leader and was universally admired for his articulate, compassionate manner. His loss is immeasurable to our community at the PSFC, NSE and MIT, and around the entire fusion and plasma research world.”

Allen Taylor, a Tufts University professor of biomechanical and molecular nutrition who lives in the area, told Fox News Digital outside Loureiro’s home on Wednesday that the shooting rocked the tight-knit community, which is also home to several Brown University students, where another shooting claimed two lives over the weekend. 

“I’m concerned because he was a human being, first, and secondly, because he’s a scientist, and I know how much we invest in training people so they can make major contributions to our society, and then when they’re murdered, it’s a tremendous compromise to our community and to the world at large,” Taylor said.

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Loureiro obtained an undergraduate degree from the Instituto Superior Tecnico in Lisbon before getting a Ph.D. in physics at Imperial College London.

He went on to do post-doctoral work at Princeton University in New Jersey and UKAEA Culham Centre for Fusion Energy in the U.K. and returned to research in Lisbon before joining MIT’s faculty in 2016. He became a full professor in 2021 and was later named the director of the school’s Plasma Science and Fusion Center.

His research has earned him a half-dozen awards since 2015, most recently honored with the U.S. government’s Presidential Early Career Award for Scientists and Engineers, which he received earlier this year.

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In a 2019 interview, Loureiro likened complicated science to an art form.

“When we stimulate theoretically inclined minds by framing plasma physics and fusion challenges as beautiful theoretical physics problems, we bring into the game incredibly brilliant students — people who we want to attract to fusion development,” he said.

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In an earlier lecture on accepting and overcoming failure, he urged students to set their goals high and not be afraid of falling short.

“If you’re not failing all the time, you’re aiming too low,” he said.

Authorities have identified a person of interest in the Brown University mass shooting, three senior law enforcement officials briefed on the investigation told NBC News.

This comes after days of intense investigation and a manhunt for a gunman who opened fire inside the Barus and Holley engineering building on the Providence, Rhode Island, campus on Saturday. Two students were killed and nine other people injured.

Another person of interest was previously taken into custody, but that person was eventually released when investigators ruled them out as a suspect.

Michael Tabman, a retired FBI special agent in charge, joined NBC10 Boston on Thursday to discuss the possible connection being investigated between the shooting death of an MIT professor in Brookline, Massachusetts, and last weekend’s mass shooting on the Brown University campus.

Investigators released a series of surveillance videos and images of a person of interest, asking the public for help with the search.

The shooting has raised questions about safety and security on Brown’s campus and concerns about misinformation and AI-generated images circulated online due to the high-profile nature of the case.

Investigators are looking into whether the Brown shooting may be linked to the killing of an MIT professor at his Brookline, Massachusetts, home this week.

This is a breaking story. Check back for updates.